TY  - JOUR
AU  - Pavić, Aleksandar
AU  - Glišić, Biljana
AU  - Vojnovic, Sandra
AU  - Warzajtis, Beata
AU  - Savic, Nada D.
AU  - Antic, Marija
AU  - Radenković, Slavko
AU  - Janjić, Goran
AU  - Nikodinović-Runić, Jasmina
AU  - Rychlewska, Urszula
AU  - Đuran, Miloš
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2136
AB  - Gold(III) complexes with 1,7- and 4,7-phenanthroline ligands, [AuCl3(1,7-phen-kappa N7)] (1) and [AuCl3(4,7-phen-kappa N4)] (2) were synthesized and structurally characterized by spectroscopic (NMR, IR and UV-vis) and single crystal X-ray diffraction techniques. In these complexes, 1,7- and 4,7-phenanthrolines are monodentatedly coordinated to the Au(III) ion through the N7 and N4 nitrogen atoms, respectively. In comparison to the clinically relevant anti-angiogenic compounds auranofin and sunitinib, gold(III)-phenanthroline complexes showed from 1.5- to 20-fold higher anti-angiogenic potential, and 13- and 118-fold lower toxicity. Among the tested compounds, complex 1 was the most potent and may be an excellent anti-angiogenic drug candidate, since it showed strong anti-angiogenic activity in zebrafish embryos achieving IC50 value (concentration resulting in an anti-angiogenic phenotype at 50% of embryos) of 2.89 mu M, while had low toxicity with LC50 value (the concentration inducing the lethal effect of 50% embryos) of 128 mu M. Molecular docking study revealed that both complexes and ligands could suppress angiogenesis targeting the multiple major regulators of angiogenesis, such as the vascular endothelial growth factor receptor (VEGFR-2), the matrix metalloproteases (MMP-2 and MMP-9), and thioredoxin reductase (TrxR1), where the complexes showed higher binding affinity in comparison to ligands, and particularly to auranofin, but comparable to sunitinib, an anti-angiogenic drug of clinical relevance.
PB  - Elsevier Science Inc, New York
T2  - Journal of Inorganic Biochemistry
T1  - Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib
VL  - 174
SP  - 156
EP  - 168
DO  - 10.1016/j.jinorgbio.2017.06.009
ER  - 

@article{
author = "Pavić, Aleksandar and Glišić, Biljana and Vojnovic, Sandra and Warzajtis, Beata and Savic, Nada D. and Antic, Marija and Radenković, Slavko and Janjić, Goran and Nikodinović-Runić, Jasmina and Rychlewska, Urszula and Đuran, Miloš",
year = "2017",
abstract = "Gold(III) complexes with 1,7- and 4,7-phenanthroline ligands, [AuCl3(1,7-phen-kappa N7)] (1) and [AuCl3(4,7-phen-kappa N4)] (2) were synthesized and structurally characterized by spectroscopic (NMR, IR and UV-vis) and single crystal X-ray diffraction techniques. In these complexes, 1,7- and 4,7-phenanthrolines are monodentatedly coordinated to the Au(III) ion through the N7 and N4 nitrogen atoms, respectively. In comparison to the clinically relevant anti-angiogenic compounds auranofin and sunitinib, gold(III)-phenanthroline complexes showed from 1.5- to 20-fold higher anti-angiogenic potential, and 13- and 118-fold lower toxicity. Among the tested compounds, complex 1 was the most potent and may be an excellent anti-angiogenic drug candidate, since it showed strong anti-angiogenic activity in zebrafish embryos achieving IC50 value (concentration resulting in an anti-angiogenic phenotype at 50% of embryos) of 2.89 mu M, while had low toxicity with LC50 value (the concentration inducing the lethal effect of 50% embryos) of 128 mu M. Molecular docking study revealed that both complexes and ligands could suppress angiogenesis targeting the multiple major regulators of angiogenesis, such as the vascular endothelial growth factor receptor (VEGFR-2), the matrix metalloproteases (MMP-2 and MMP-9), and thioredoxin reductase (TrxR1), where the complexes showed higher binding affinity in comparison to ligands, and particularly to auranofin, but comparable to sunitinib, an anti-angiogenic drug of clinical relevance.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Inorganic Biochemistry",
title = "Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib",
volume = "174",
pages = "156-168",
doi = "10.1016/j.jinorgbio.2017.06.009"
}

Pavić, A., Glišić, B., Vojnovic, S., Warzajtis, B., Savic, N. D., Antic, M., Radenković, S., Janjić, G., Nikodinović-Runić, J., Rychlewska, U.,& Đuran, M.. (2017). Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib. in Journal of Inorganic Biochemistry
Elsevier Science Inc, New York., 174, 156-168.
https://doi.org/10.1016/j.jinorgbio.2017.06.009

Pavić A, Glišić B, Vojnovic S, Warzajtis B, Savic ND, Antic M, Radenković S, Janjić G, Nikodinović-Runić J, Rychlewska U, Đuran M. Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib. in Journal of Inorganic Biochemistry. 2017;174:156-168.
doi:10.1016/j.jinorgbio.2017.06.009 .

Pavić, Aleksandar, Glišić, Biljana, Vojnovic, Sandra, Warzajtis, Beata, Savic, Nada D., Antic, Marija, Radenković, Slavko, Janjić, Goran, Nikodinović-Runić, Jasmina, Rychlewska, Urszula, Đuran, Miloš, "Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib" in Journal of Inorganic Biochemistry, 174 (2017):156-168,
https://doi.org/10.1016/j.jinorgbio.2017.06.009 . .

TY  - JOUR
AU  - Pavić, Aleksandar
AU  - Glišić, Biljana
AU  - Vojnovic, Sandra
AU  - Warzajtis, Beata
AU  - Savic, Nada D.
AU  - Antic, Marija
AU  - Radenković, Slavko
AU  - Janjić, Goran
AU  - Nikodinović-Runić, Jasmina
AU  - Rychlewska, Urszula
AU  - Đuran, Miloš
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2939
AB  - Gold(III) complexes with 1,7- and 4,7-phenanthroline ligands, [AuCl3(1,7-phen-kappa N7)] (1) and [AuCl3(4,7-phen-kappa N4)] (2) were synthesized and structurally characterized by spectroscopic (NMR, IR and UV-vis) and single crystal X-ray diffraction techniques. In these complexes, 1,7- and 4,7-phenanthrolines are monodentatedly coordinated to the Au(III) ion through the N7 and N4 nitrogen atoms, respectively. In comparison to the clinically relevant anti-angiogenic compounds auranofin and sunitinib, gold(III)-phenanthroline complexes showed from 1.5- to 20-fold higher anti-angiogenic potential, and 13- and 118-fold lower toxicity. Among the tested compounds, complex 1 was the most potent and may be an excellent anti-angiogenic drug candidate, since it showed strong anti-angiogenic activity in zebrafish embryos achieving IC50 value (concentration resulting in an anti-angiogenic phenotype at 50% of embryos) of 2.89 mu M, while had low toxicity with LC50 value (the concentration inducing the lethal effect of 50% embryos) of 128 mu M. Molecular docking study revealed that both complexes and ligands could suppress angiogenesis targeting the multiple major regulators of angiogenesis, such as the vascular endothelial growth factor receptor (VEGFR-2), the matrix metalloproteases (MMP-2 and MMP-9), and thioredoxin reductase (TrxR1), where the complexes showed higher binding affinity in comparison to ligands, and particularly to auranofin, but comparable to sunitinib, an anti-angiogenic drug of clinical relevance.
PB  - Elsevier Science Inc, New York
T2  - Journal of Inorganic Biochemistry
T1  - Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib
VL  - 174
SP  - 156
EP  - 168
DO  - 10.1016/j.jinorgbio.2017.06.009
ER  - 

@article{
author = "Pavić, Aleksandar and Glišić, Biljana and Vojnovic, Sandra and Warzajtis, Beata and Savic, Nada D. and Antic, Marija and Radenković, Slavko and Janjić, Goran and Nikodinović-Runić, Jasmina and Rychlewska, Urszula and Đuran, Miloš",
year = "2017",
abstract = "Gold(III) complexes with 1,7- and 4,7-phenanthroline ligands, [AuCl3(1,7-phen-kappa N7)] (1) and [AuCl3(4,7-phen-kappa N4)] (2) were synthesized and structurally characterized by spectroscopic (NMR, IR and UV-vis) and single crystal X-ray diffraction techniques. In these complexes, 1,7- and 4,7-phenanthrolines are monodentatedly coordinated to the Au(III) ion through the N7 and N4 nitrogen atoms, respectively. In comparison to the clinically relevant anti-angiogenic compounds auranofin and sunitinib, gold(III)-phenanthroline complexes showed from 1.5- to 20-fold higher anti-angiogenic potential, and 13- and 118-fold lower toxicity. Among the tested compounds, complex 1 was the most potent and may be an excellent anti-angiogenic drug candidate, since it showed strong anti-angiogenic activity in zebrafish embryos achieving IC50 value (concentration resulting in an anti-angiogenic phenotype at 50% of embryos) of 2.89 mu M, while had low toxicity with LC50 value (the concentration inducing the lethal effect of 50% embryos) of 128 mu M. Molecular docking study revealed that both complexes and ligands could suppress angiogenesis targeting the multiple major regulators of angiogenesis, such as the vascular endothelial growth factor receptor (VEGFR-2), the matrix metalloproteases (MMP-2 and MMP-9), and thioredoxin reductase (TrxR1), where the complexes showed higher binding affinity in comparison to ligands, and particularly to auranofin, but comparable to sunitinib, an anti-angiogenic drug of clinical relevance.",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Inorganic Biochemistry",
title = "Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib",
volume = "174",
pages = "156-168",
doi = "10.1016/j.jinorgbio.2017.06.009"
}

Pavić, A., Glišić, B., Vojnovic, S., Warzajtis, B., Savic, N. D., Antic, M., Radenković, S., Janjić, G., Nikodinović-Runić, J., Rychlewska, U.,& Đuran, M.. (2017). Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib. in Journal of Inorganic Biochemistry
Elsevier Science Inc, New York., 174, 156-168.
https://doi.org/10.1016/j.jinorgbio.2017.06.009

Pavić A, Glišić B, Vojnovic S, Warzajtis B, Savic ND, Antic M, Radenković S, Janjić G, Nikodinović-Runić J, Rychlewska U, Đuran M. Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib. in Journal of Inorganic Biochemistry. 2017;174:156-168.
doi:10.1016/j.jinorgbio.2017.06.009 .

Pavić, Aleksandar, Glišić, Biljana, Vojnovic, Sandra, Warzajtis, Beata, Savic, Nada D., Antic, Marija, Radenković, Slavko, Janjić, Goran, Nikodinović-Runić, Jasmina, Rychlewska, Urszula, Đuran, Miloš, "Mononuclear gold(III) complexes with phenanthroline ligands as efficient inhibitors of angiogenesis: A comparative study with auranofin and sunitinib" in Journal of Inorganic Biochemistry, 174 (2017):156-168,
https://doi.org/10.1016/j.jinorgbio.2017.06.009 . .

TY  - JOUR
AU  - Warzajtis, Beata
AU  - Rychlewska, Urszula
AU  - Radanović, Dušanka
AU  - Stanojević, Ivana M.
AU  - Draskovic, Nenad S.
AU  - Radulovic, Niko S.
AU  - Đuran, Miloš
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1525
AB  - A series of Na+, K+ and Ca2+ salts of chromium(III) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N',N'-tetraacetate (1,3-pndta) ligand was evaluated. The extent of distortion exhibited in the geometry of these octahedral complexes was computed and related to the configuration at the metal center and the ligand stereogenic center. The materials have been used to investigate the effect of the counter ion and the diamine ring substitution on the self organization and degree of hydration of these molecules in crystals. Various modes of carboxylate binding to metal atoms have been related to the formation of 3D, 2D and 1D polymeric structures. The electronic absorption and H-1 NMR spectra of 1,3-pndta-Cr(III) complexes are discussed in relation to those of 1,3-pdta-Cr(III) complex (1,3-propanediamine-N,N,N',N'-tetraacetate ion) of known structure.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Polyhedron
T1  - Carboxylato-bridged polymeric complexes of chromium(III) with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand carrying different counter ions. Stereospecific formation and crystal structures of Na[Cr(1,3-pndta)]center dot H2O, K[C
VL  - 67
SP  - 270
EP  - 278
DO  - 10.1016/j.poly.2013.09.009
ER  - 

@article{
author = "Warzajtis, Beata and Rychlewska, Urszula and Radanović, Dušanka and Stanojević, Ivana M. and Draskovic, Nenad S. and Radulovic, Niko S. and Đuran, Miloš",
year = "2014",
abstract = "A series of Na+, K+ and Ca2+ salts of chromium(III) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N',N'-tetraacetate (1,3-pndta) ligand was evaluated. The extent of distortion exhibited in the geometry of these octahedral complexes was computed and related to the configuration at the metal center and the ligand stereogenic center. The materials have been used to investigate the effect of the counter ion and the diamine ring substitution on the self organization and degree of hydration of these molecules in crystals. Various modes of carboxylate binding to metal atoms have been related to the formation of 3D, 2D and 1D polymeric structures. The electronic absorption and H-1 NMR spectra of 1,3-pndta-Cr(III) complexes are discussed in relation to those of 1,3-pdta-Cr(III) complex (1,3-propanediamine-N,N,N',N'-tetraacetate ion) of known structure.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Polyhedron",
title = "Carboxylato-bridged polymeric complexes of chromium(III) with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand carrying different counter ions. Stereospecific formation and crystal structures of Na[Cr(1,3-pndta)]center dot H2O, K[C",
volume = "67",
pages = "270-278",
doi = "10.1016/j.poly.2013.09.009"
}

Warzajtis, B., Rychlewska, U., Radanović, D., Stanojević, I. M., Draskovic, N. S., Radulovic, N. S.,& Đuran, M.. (2014). Carboxylato-bridged polymeric complexes of chromium(III) with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand carrying different counter ions. Stereospecific formation and crystal structures of Na[Cr(1,3-pndta)]center dot H2O, K[C. in Polyhedron
Oxford : Pergamon-Elsevier Science Ltd., 67, 270-278.
https://doi.org/10.1016/j.poly.2013.09.009

Warzajtis B, Rychlewska U, Radanović D, Stanojević IM, Draskovic NS, Radulovic NS, Đuran M. Carboxylato-bridged polymeric complexes of chromium(III) with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand carrying different counter ions. Stereospecific formation and crystal structures of Na[Cr(1,3-pndta)]center dot H2O, K[C. in Polyhedron. 2014;67:270-278.
doi:10.1016/j.poly.2013.09.009 .

Warzajtis, Beata, Rychlewska, Urszula, Radanović, Dušanka, Stanojević, Ivana M., Draskovic, Nenad S., Radulovic, Niko S., Đuran, Miloš, "Carboxylato-bridged polymeric complexes of chromium(III) with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand carrying different counter ions. Stereospecific formation and crystal structures of Na[Cr(1,3-pndta)]center dot H2O, K[C" in Polyhedron, 67 (2014):270-278,
https://doi.org/10.1016/j.poly.2013.09.009 . .

TY  - JOUR
AU  - Draskovic, Nenad S.
AU  - Radanović, Dušanka
AU  - Rychlewska, Urszula
AU  - Warzajtis, Beata
AU  - Stanojević, Ivana M.
AU  - Đuran, Miloš
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1107
AB  - Structural variations modulated by ethyl side group have been analyzed for nickel(II) and copper(II) complexes with (+/-)-1,3-pentanediamine-N,N,N',N'-tetraacetate ligand (1,3-pndta) and its pentadentate derivative (+/-)-1,3-pentanediamine-N,N,N'-triacetate (1,3-pnd3a). X-ray results obtained for the octahedral 1,3-pndta-Ni(II) complex indicate the distinct correlation of the central chirality of the metal with the chirality at the diamine alpha-carbon, which leads to the formation of a racemic mixture of Delta Lambda Delta(R) and Lambda Delta Lambda(S) enantiomeric anionic complexes, where the R and S labels designate the absolute configuration at the ligand (ethyl-substituted) stereogenic center. These stereoisomers are those required to maintain an equatorial ethyl group on the central six-membered chelate ring, whose conformation is lambda twist-boat for the Delta Lambda Delta isomer and 8 twist-boat for the Lambda Delta Lambda isomer. Ethyl group discernibly affects the variation of the Ni-N and Ni-O bond lengths compared to the analogous complex lacking the substitution of one of the diastereotopic diamine CH2 hydrogens and functions as steric bulkiness which hampers an efficient and of high symmetry packing, observed in the crystals of the parent complex. The infrared and electronic absorption spectra of hexadentate Mg[Ni(1,3-pndta)]center dot 10H(2)O (1) and Mg[Cu(1,3-pndta)]center dot 7H(2)O (3), and pentadentate Mg[Ni-2(1,3-pnd3a)(2)]center dot 8H(2)O (2) and MgiCu2(1,3-pnd3a)(2)]center dot 7H(2)O (4) complexes are presented and discussed in comparison with those of the analogous Mg[Ni(1,3-pdta)center dot 8H(2)O (5), Ma[Cu(1,3-pdta)]center dot 8H(2)O (6) and Mg[Cu-2(1,3-pd3a)(2)]center dot 7H(2)O (7) complexes of known crystal structures.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Polyhedron
T1  - Synthesis and spectral characterization of nickel(II) and copper(II) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand and its pentadentate derivative: Stereospecific formation and crystal structure of [Mg(H2O)(6)][Ni
VL  - 43
IS  - 1
SP  - 185
EP  - 193
DO  - 10.1016/j.poly.2012.06.013
ER  - 

@article{
author = "Draskovic, Nenad S. and Radanović, Dušanka and Rychlewska, Urszula and Warzajtis, Beata and Stanojević, Ivana M. and Đuran, Miloš",
year = "2012",
abstract = "Structural variations modulated by ethyl side group have been analyzed for nickel(II) and copper(II) complexes with (+/-)-1,3-pentanediamine-N,N,N',N'-tetraacetate ligand (1,3-pndta) and its pentadentate derivative (+/-)-1,3-pentanediamine-N,N,N'-triacetate (1,3-pnd3a). X-ray results obtained for the octahedral 1,3-pndta-Ni(II) complex indicate the distinct correlation of the central chirality of the metal with the chirality at the diamine alpha-carbon, which leads to the formation of a racemic mixture of Delta Lambda Delta(R) and Lambda Delta Lambda(S) enantiomeric anionic complexes, where the R and S labels designate the absolute configuration at the ligand (ethyl-substituted) stereogenic center. These stereoisomers are those required to maintain an equatorial ethyl group on the central six-membered chelate ring, whose conformation is lambda twist-boat for the Delta Lambda Delta isomer and 8 twist-boat for the Lambda Delta Lambda isomer. Ethyl group discernibly affects the variation of the Ni-N and Ni-O bond lengths compared to the analogous complex lacking the substitution of one of the diastereotopic diamine CH2 hydrogens and functions as steric bulkiness which hampers an efficient and of high symmetry packing, observed in the crystals of the parent complex. The infrared and electronic absorption spectra of hexadentate Mg[Ni(1,3-pndta)]center dot 10H(2)O (1) and Mg[Cu(1,3-pndta)]center dot 7H(2)O (3), and pentadentate Mg[Ni-2(1,3-pnd3a)(2)]center dot 8H(2)O (2) and MgiCu2(1,3-pnd3a)(2)]center dot 7H(2)O (4) complexes are presented and discussed in comparison with those of the analogous Mg[Ni(1,3-pdta)center dot 8H(2)O (5), Ma[Cu(1,3-pdta)]center dot 8H(2)O (6) and Mg[Cu-2(1,3-pd3a)(2)]center dot 7H(2)O (7) complexes of known crystal structures.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Polyhedron",
title = "Synthesis and spectral characterization of nickel(II) and copper(II) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand and its pentadentate derivative: Stereospecific formation and crystal structure of [Mg(H2O)(6)][Ni",
volume = "43",
number = "1",
pages = "185-193",
doi = "10.1016/j.poly.2012.06.013"
}

Draskovic, N. S., Radanović, D., Rychlewska, U., Warzajtis, B., Stanojević, I. M.,& Đuran, M.. (2012). Synthesis and spectral characterization of nickel(II) and copper(II) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand and its pentadentate derivative: Stereospecific formation and crystal structure of [Mg(H2O)(6)][Ni. in Polyhedron
Oxford : Pergamon-Elsevier Science Ltd., 43(1), 185-193.
https://doi.org/10.1016/j.poly.2012.06.013

Draskovic NS, Radanović D, Rychlewska U, Warzajtis B, Stanojević IM, Đuran M. Synthesis and spectral characterization of nickel(II) and copper(II) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand and its pentadentate derivative: Stereospecific formation and crystal structure of [Mg(H2O)(6)][Ni. in Polyhedron. 2012;43(1):185-193.
doi:10.1016/j.poly.2012.06.013 .

Draskovic, Nenad S., Radanović, Dušanka, Rychlewska, Urszula, Warzajtis, Beata, Stanojević, Ivana M., Đuran, Miloš, "Synthesis and spectral characterization of nickel(II) and copper(II) complexes with the hexadentate (+/-)-1,3-pentanediamine-N,N,N ',N '-tetraacetate ligand and its pentadentate derivative: Stereospecific formation and crystal structure of [Mg(H2O)(6)][Ni" in Polyhedron, 43, no. 1 (2012):185-193,
https://doi.org/10.1016/j.poly.2012.06.013 . .

TY  - JOUR
AU  - Milenković, Milica R.
AU  - Warzajtis, Beata
AU  - Rychlewska, Urszula
AU  - Radanović, Dušanka
AU  - Anđelković, Katarina
AU  - Božić, Tatjana T.
AU  - Vujčić, Miroslava
AU  - Sladić, Dušan
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1025
AB  - The facile preparation of a racemic hydrazine bridged diphosphonium compound possessing a ring system analogous to bicyclo[3.3.2]decane is reported. Although the reaction yield is low, the structure of the compound, which possesses an eight-membered ring, two phosphonium cationic centers, a biimino bridge, molecular chirality and two fused aromatic rings locked into roughly perpendicular planes is unusual. The compound displays substantial biological activity in the brine shrimp test and cleaves plasmid DNA.
PB  - MDPI
T2  - Molecules
T1  - Synthesis, Spectral and Solid State Characterization of a New Bioactive Hydrazine Bridged Cyclic Diphosphonium Compound
VL  - 17
IS  - 3
SP  - 2567
EP  - 2578
DO  - 10.3390/molecules17032567
ER  - 

@article{
author = "Milenković, Milica R. and Warzajtis, Beata and Rychlewska, Urszula and Radanović, Dušanka and Anđelković, Katarina and Božić, Tatjana T. and Vujčić, Miroslava and Sladić, Dušan",
year = "2012",
abstract = "The facile preparation of a racemic hydrazine bridged diphosphonium compound possessing a ring system analogous to bicyclo[3.3.2]decane is reported. Although the reaction yield is low, the structure of the compound, which possesses an eight-membered ring, two phosphonium cationic centers, a biimino bridge, molecular chirality and two fused aromatic rings locked into roughly perpendicular planes is unusual. The compound displays substantial biological activity in the brine shrimp test and cleaves plasmid DNA.",
publisher = "MDPI",
journal = "Molecules",
title = "Synthesis, Spectral and Solid State Characterization of a New Bioactive Hydrazine Bridged Cyclic Diphosphonium Compound",
volume = "17",
number = "3",
pages = "2567-2578",
doi = "10.3390/molecules17032567"
}

Milenković, M. R., Warzajtis, B., Rychlewska, U., Radanović, D., Anđelković, K., Božić, T. T., Vujčić, M.,& Sladić, D.. (2012). Synthesis, Spectral and Solid State Characterization of a New Bioactive Hydrazine Bridged Cyclic Diphosphonium Compound. in Molecules
MDPI., 17(3), 2567-2578.
https://doi.org/10.3390/molecules17032567

Milenković MR, Warzajtis B, Rychlewska U, Radanović D, Anđelković K, Božić TT, Vujčić M, Sladić D. Synthesis, Spectral and Solid State Characterization of a New Bioactive Hydrazine Bridged Cyclic Diphosphonium Compound. in Molecules. 2012;17(3):2567-2578.
doi:10.3390/molecules17032567 .

Milenković, Milica R., Warzajtis, Beata, Rychlewska, Urszula, Radanović, Dušanka, Anđelković, Katarina, Božić, Tatjana T., Vujčić, Miroslava, Sladić, Dušan, "Synthesis, Spectral and Solid State Characterization of a New Bioactive Hydrazine Bridged Cyclic Diphosphonium Compound" in Molecules, 17, no. 3 (2012):2567-2578,
https://doi.org/10.3390/molecules17032567 . .

TY  - JOUR
AU  - Čobeljić, Božidar
AU  - Warzajtis, Beata
AU  - Rychlewska, Urszula
AU  - Radanović, Dušanka
AU  - Spasojević, Vojislav
AU  - Sladić, Dušan
AU  - Eshkourfu, Rabia
AU  - Anđelković, Katarina
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1041
AB  - A new malonic dihydrazide-based ligand, N',N'(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide (H(2)L3), has been prepared and characterized by elemental analysis, IR, C-13 NMR, and H-1 NMR spectroscopies. In the reaction of H(2)L3 with Ni(II) a binuclear complex has been obtained. The structure of the complex was established by X-ray analysis. Each Ni(II) is coordinated with two NNO donor sets from two ligand molecules in dianionic form (L3(2-)) forming an octahedral geometry. Multiple intramolecular C-H center dot center dot center dot pi (chelate ring) interactions support the molecular geometry of the [Ni-2(L3)(2)] complex. The structure of [Ni-2(L3)(2)] is compared with those of analogous Ni(II) complexes with pyridine dihydrazone type ligands. Magnetic behavior of the dinuclear complex was studied in temperature range of 2-300 K.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of Coordination Chemistry
T1  - Synthesis and structure of a Ni(II) complex with N ',N '(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide: multiple intramolecular CH center dot center dot center dot pi interactions between quinoline and quinolineimine chelate
VL  - 65
IS  - 4
SP  - 655
EP  - 667
DO  - 10.1080/00958972.2012.658778
ER  - 

@article{
author = "Čobeljić, Božidar and Warzajtis, Beata and Rychlewska, Urszula and Radanović, Dušanka and Spasojević, Vojislav and Sladić, Dušan and Eshkourfu, Rabia and Anđelković, Katarina",
year = "2012",
abstract = "A new malonic dihydrazide-based ligand, N',N'(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide (H(2)L3), has been prepared and characterized by elemental analysis, IR, C-13 NMR, and H-1 NMR spectroscopies. In the reaction of H(2)L3 with Ni(II) a binuclear complex has been obtained. The structure of the complex was established by X-ray analysis. Each Ni(II) is coordinated with two NNO donor sets from two ligand molecules in dianionic form (L3(2-)) forming an octahedral geometry. Multiple intramolecular C-H center dot center dot center dot pi (chelate ring) interactions support the molecular geometry of the [Ni-2(L3)(2)] complex. The structure of [Ni-2(L3)(2)] is compared with those of analogous Ni(II) complexes with pyridine dihydrazone type ligands. Magnetic behavior of the dinuclear complex was studied in temperature range of 2-300 K.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of Coordination Chemistry",
title = "Synthesis and structure of a Ni(II) complex with N ',N '(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide: multiple intramolecular CH center dot center dot center dot pi interactions between quinoline and quinolineimine chelate",
volume = "65",
number = "4",
pages = "655-667",
doi = "10.1080/00958972.2012.658778"
}

Čobeljić, B., Warzajtis, B., Rychlewska, U., Radanović, D., Spasojević, V., Sladić, D., Eshkourfu, R.,& Anđelković, K.. (2012). Synthesis and structure of a Ni(II) complex with N ',N '(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide: multiple intramolecular CH center dot center dot center dot pi interactions between quinoline and quinolineimine chelate. in Journal of Coordination Chemistry
Taylor & Francis Ltd, Abingdon., 65(4), 655-667.
https://doi.org/10.1080/00958972.2012.658778

Čobeljić B, Warzajtis B, Rychlewska U, Radanović D, Spasojević V, Sladić D, Eshkourfu R, Anđelković K. Synthesis and structure of a Ni(II) complex with N ',N '(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide: multiple intramolecular CH center dot center dot center dot pi interactions between quinoline and quinolineimine chelate. in Journal of Coordination Chemistry. 2012;65(4):655-667.
doi:10.1080/00958972.2012.658778 .

Čobeljić, Božidar, Warzajtis, Beata, Rychlewska, Urszula, Radanović, Dušanka, Spasojević, Vojislav, Sladić, Dušan, Eshkourfu, Rabia, Anđelković, Katarina, "Synthesis and structure of a Ni(II) complex with N ',N '(2)-bis[(1E)-1-(2-quinolyl)methylene]propanedihydrazide: multiple intramolecular CH center dot center dot center dot pi interactions between quinoline and quinolineimine chelate" in Journal of Coordination Chemistry, 65, no. 4 (2012):655-667,
https://doi.org/10.1080/00958972.2012.658778 . .

TY  - JOUR
AU  - Rychlewska, Urszula
AU  - Warzajtis, Beata
AU  - Radanović, Dušanka
AU  - Draskovic, Nenad S.
AU  - Stanojević, Ivana M.
AU  - Đuran, Miloš
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/915
AB  - This paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bis-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Polyhedron
T1  - Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O
VL  - 30
IS  - 6
SP  - 983
EP  - 989
DO  - 10.1016/j.poly.2010.12.045
ER  - 

@article{
author = "Rychlewska, Urszula and Warzajtis, Beata and Radanović, Dušanka and Draskovic, Nenad S. and Stanojević, Ivana M. and Đuran, Miloš",
year = "2011",
abstract = "This paper reports the synthesis and X-ray characteristics of the missing homonuclear s-block metal complex {[Sr-2(1,3-pdta)(H2O)(6)]center dot H2O}(n). In the title compound, the hexadentate 1,3-propanediaminetetraacetate (1,3-pdta) ligand joins to two Sr(II) centers via the diamine chain. Moreover, each Sr(II) is bridged through two carboxylate O atoms and a water molecule to two neighboring Sr(II) ions. The coordination sphere around each Sr(II) ion consists of one diamine nitrogen, four carboxylate oxygens and four water molecules. Comparison with the previously reported M(II)-1,3-pdta complexes reveals that increasing of the ion size results in the incorporation of water molecules into its first coordination sphere and consequent increase of the coordination number (C.N.) from six to seven or eight, while keeping the hexadentate coordination mode of the ligand. Further increase of the metal ion size leads to the loss of the chelating properties of the diamine and formation of a bis-tridentate complex. Associated with it is the change in the binding mode of the carboxylate groups. This forms the basis for classification of divalent metal 1,3-pdta complexes into five distinct structural classes. Additionally, in the present study X-ray powder diffraction and IR spectroscopy were used to distinguish the different structural types of M(II)-1,3-pdta complexes, including Ba[Ba(1,3-pdta)]center dot 2H(2)O which has been used for their preparation.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Polyhedron",
title = "Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O",
volume = "30",
number = "6",
pages = "983-989",
doi = "10.1016/j.poly.2010.12.045"
}

Rychlewska, U., Warzajtis, B., Radanović, D., Draskovic, N. S., Stanojević, I. M.,& Đuran, M.. (2011). Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O. in Polyhedron
Oxford : Pergamon-Elsevier Science Ltd., 30(6), 983-989.
https://doi.org/10.1016/j.poly.2010.12.045

Rychlewska U, Warzajtis B, Radanović D, Draskovic NS, Stanojević IM, Đuran M. Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O. in Polyhedron. 2011;30(6):983-989.
doi:10.1016/j.poly.2010.12.045 .

Rychlewska, Urszula, Warzajtis, Beata, Radanović, Dušanka, Draskovic, Nenad S., Stanojević, Ivana M., Đuran, Miloš, "Structural diversification of the coordination mode of divalent metals with 1,3-propanediaminetetraacetate (1,3-pdta): The missing crystal structure of the s-block metal complex [Sr-2(1,3-pdta)(H2O)(6)]center dot H2O" in Polyhedron, 30, no. 6 (2011):983-989,
https://doi.org/10.1016/j.poly.2010.12.045 . .

TY  - JOUR
AU  - Todorović, Tamara
AU  - Rychlewska, Urszula
AU  - Warzajtis, B.
AU  - Radanović, Dušanka
AU  - Filipović, N.R.
AU  - Ilić-Pajić, Jovana
AU  - Sladić, Dušan
AU  - Anđelković, Katarina
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/577
AB  - The bimetallic [Ni2(H2L2)2](ClO4)4 (1), [Ni2(HL2)(H2L2)](ClO4)3 (2) and [Zn2(H2L2)2](BF4) 4 (3) complexes (H2L2 = N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide) were synthesized and characterized. The structure of complexes (1) and (2) was established by X-ray analysis. NMR spectroscopy was used for the characterization of complex (3). The complexes (1) and (2) were obtained from the same synthetic reaction and two crystal types of these complexes have been isolated during the fractional crystallization process. In complex (1) each Ni(II) ion is coordinated with two NNO donor atom sets from two H2L2 ligands forming an octahedral geometry. Similarly, in complex (2) the octahedral geometry of each Ni(II) ion is attained by coordination of two NNO donor atom sets, one from the neutral and the other from the monoanionic form of the ligand. The antimicrobial activity of the ligand and complexes is also presented.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Polyhedron
T1  - Synthesis, characterization and antimicrobial activity of Ni(II) and Zn(II) complexes with N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide. Crystal structures of two highly solvated bimetallic complexes of Ni(II)
VL  - 28
IS  - 12
SP  - 2397
EP  - 2402
DO  - 10.1016/j.poly.2009.05.002
ER  - 

@article{
author = "Todorović, Tamara and Rychlewska, Urszula and Warzajtis, B. and Radanović, Dušanka and Filipović, N.R. and Ilić-Pajić, Jovana and Sladić, Dušan and Anđelković, Katarina",
year = "2009",
abstract = "The bimetallic [Ni2(H2L2)2](ClO4)4 (1), [Ni2(HL2)(H2L2)](ClO4)3 (2) and [Zn2(H2L2)2](BF4) 4 (3) complexes (H2L2 = N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide) were synthesized and characterized. The structure of complexes (1) and (2) was established by X-ray analysis. NMR spectroscopy was used for the characterization of complex (3). The complexes (1) and (2) were obtained from the same synthetic reaction and two crystal types of these complexes have been isolated during the fractional crystallization process. In complex (1) each Ni(II) ion is coordinated with two NNO donor atom sets from two H2L2 ligands forming an octahedral geometry. Similarly, in complex (2) the octahedral geometry of each Ni(II) ion is attained by coordination of two NNO donor atom sets, one from the neutral and the other from the monoanionic form of the ligand. The antimicrobial activity of the ligand and complexes is also presented.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Polyhedron",
title = "Synthesis, characterization and antimicrobial activity of Ni(II) and Zn(II) complexes with N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide. Crystal structures of two highly solvated bimetallic complexes of Ni(II)",
volume = "28",
number = "12",
pages = "2397-2402",
doi = "10.1016/j.poly.2009.05.002"
}

Todorović, T., Rychlewska, U., Warzajtis, B., Radanović, D., Filipović, N.R., Ilić-Pajić, J., Sladić, D.,& Anđelković, K.. (2009). Synthesis, characterization and antimicrobial activity of Ni(II) and Zn(II) complexes with N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide. Crystal structures of two highly solvated bimetallic complexes of Ni(II). in Polyhedron
Oxford : Pergamon-Elsevier Science Ltd., 28(12), 2397-2402.
https://doi.org/10.1016/j.poly.2009.05.002

Todorović T, Rychlewska U, Warzajtis B, Radanović D, Filipović N, Ilić-Pajić J, Sladić D, Anđelković K. Synthesis, characterization and antimicrobial activity of Ni(II) and Zn(II) complexes with N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide. Crystal structures of two highly solvated bimetallic complexes of Ni(II). in Polyhedron. 2009;28(12):2397-2402.
doi:10.1016/j.poly.2009.05.002 .

Todorović, Tamara, Rychlewska, Urszula, Warzajtis, B., Radanović, Dušanka, Filipović, N.R., Ilić-Pajić, Jovana, Sladić, Dušan, Anđelković, Katarina, "Synthesis, characterization and antimicrobial activity of Ni(II) and Zn(II) complexes with N′,N′2-bis[(1E)-1-(2-pyridyl)ethylidene]propanedi hydrazide. Crystal structures of two highly solvated bimetallic complexes of Ni(II)" in Polyhedron, 28, no. 12 (2009):2397-2402,
https://doi.org/10.1016/j.poly.2009.05.002 . .

TY  - JOUR
AU  - Rychlewska, Urszula
AU  - Warzajtis, B.
AU  - Đuran, Miloš
AU  - Radanović, Dušanka
AU  - Dimitrijević, M. D.
AU  - Rajković, S.
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/446
AB  - The title compound, {[CoLi2(C11H14N2O8) (H2O)3]·2H2O}n , constitutes the first example of a salt of the [M II(1,3-pdta)]2- complex (1,3-pdta is propane-1,3-diyldinitrilo-tetra-acetate) with a monopositive cation as counter-ion. Insertion of the Li+ cation could only be achieved through application of the ion-exchange column technique which, however, appeared unsuccessful with other alkali metals and the ammonium cation. The structure contains two tetra-hedrally coordinated Li+ cations, an octa-hedral [Co(1,3-pdta)]2- anion and five water mol-ecules, two of which are uncoordinated, and is built of two-dimensional layers extending parallel to the (010) lattice plane, the constituents of which are connected by the coordinate bonds. O - Hwater⋯O hydrogen bonds operate both within and between these layers. The crystal investigated belongs to the enanti-omeric space group P21 with only one () of two possible optical isomers of the [Co(1,3-pdta)]2- complex. A possible cause of enanti-omer separation during crystallization might be the rigidification and polarization of the [M(1,3-pdta)]2- core, resulting from direct coordination of Li + cations to three out of four carboxyl-ate groups constituting the 1,3-pdta ligand. The structure of (I) differs considerably from those of the other [M II(1,3-pdta)]2- complexes, in which the charge compensation is realized by means of divalent hexa-aqua complex cations. This finding demonstrates a significant structure-determining role of the counter-ions.
T2  - Acta Crystallographica Section C: Crystal Structure Communications
T1  - Coordination behaviour and two-dimensional-network formation in poly[[μ-aqua-diaqua-(μ5-propane-1,3-diyldinitrilo-tetra-acetato) -dilithium(I)-cobalt(II)] dihydrate]: The first example of an M II-1,3-pdta complex with a monovalent metal counter-ion
VL  - 64
IS  - 6
DO  - 10.1107/S0108270108010706
ER  - 

@article{
author = "Rychlewska, Urszula and Warzajtis, B. and Đuran, Miloš and Radanović, Dušanka and Dimitrijević, M. D. and Rajković, S.",
year = "2008",
abstract = "The title compound, {[CoLi2(C11H14N2O8) (H2O)3]·2H2O}n , constitutes the first example of a salt of the [M II(1,3-pdta)]2- complex (1,3-pdta is propane-1,3-diyldinitrilo-tetra-acetate) with a monopositive cation as counter-ion. Insertion of the Li+ cation could only be achieved through application of the ion-exchange column technique which, however, appeared unsuccessful with other alkali metals and the ammonium cation. The structure contains two tetra-hedrally coordinated Li+ cations, an octa-hedral [Co(1,3-pdta)]2- anion and five water mol-ecules, two of which are uncoordinated, and is built of two-dimensional layers extending parallel to the (010) lattice plane, the constituents of which are connected by the coordinate bonds. O - Hwater⋯O hydrogen bonds operate both within and between these layers. The crystal investigated belongs to the enanti-omeric space group P21 with only one () of two possible optical isomers of the [Co(1,3-pdta)]2- complex. A possible cause of enanti-omer separation during crystallization might be the rigidification and polarization of the [M(1,3-pdta)]2- core, resulting from direct coordination of Li + cations to three out of four carboxyl-ate groups constituting the 1,3-pdta ligand. The structure of (I) differs considerably from those of the other [M II(1,3-pdta)]2- complexes, in which the charge compensation is realized by means of divalent hexa-aqua complex cations. This finding demonstrates a significant structure-determining role of the counter-ions.",
journal = "Acta Crystallographica Section C: Crystal Structure Communications",
title = "Coordination behaviour and two-dimensional-network formation in poly[[μ-aqua-diaqua-(μ5-propane-1,3-diyldinitrilo-tetra-acetato) -dilithium(I)-cobalt(II)] dihydrate]: The first example of an M II-1,3-pdta complex with a monovalent metal counter-ion",
volume = "64",
number = "6",
doi = "10.1107/S0108270108010706"
}

Rychlewska, U., Warzajtis, B., Đuran, M., Radanović, D., Dimitrijević, M. D.,& Rajković, S.. (2008). Coordination behaviour and two-dimensional-network formation in poly[[μ-aqua-diaqua-(μ5-propane-1,3-diyldinitrilo-tetra-acetato) -dilithium(I)-cobalt(II)] dihydrate]: The first example of an M II-1,3-pdta complex with a monovalent metal counter-ion. in Acta Crystallographica Section C: Crystal Structure Communications, 64(6).
https://doi.org/10.1107/S0108270108010706

Rychlewska U, Warzajtis B, Đuran M, Radanović D, Dimitrijević MD, Rajković S. Coordination behaviour and two-dimensional-network formation in poly[[μ-aqua-diaqua-(μ5-propane-1,3-diyldinitrilo-tetra-acetato) -dilithium(I)-cobalt(II)] dihydrate]: The first example of an M II-1,3-pdta complex with a monovalent metal counter-ion. in Acta Crystallographica Section C: Crystal Structure Communications. 2008;64(6).
doi:10.1107/S0108270108010706 .

Rychlewska, Urszula, Warzajtis, B., Đuran, Miloš, Radanović, Dušanka, Dimitrijević, M. D., Rajković, S., "Coordination behaviour and two-dimensional-network formation in poly[[μ-aqua-diaqua-(μ5-propane-1,3-diyldinitrilo-tetra-acetato) -dilithium(I)-cobalt(II)] dihydrate]: The first example of an M II-1,3-pdta complex with a monovalent metal counter-ion" in Acta Crystallographica Section C: Crystal Structure Communications, 64, no. 6 (2008),
https://doi.org/10.1107/S0108270108010706 . .

TY  - JOUR
AU  - Rychlewska, Urszula
AU  - Warzajtis, Beata
AU  - Cvetić, Danica
AU  - Radanović, Dušanka
AU  - Gurešić, Dejan
AU  - Đuran, Miloš
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4254
AB  - The ability of Mn(II) ion to form two distinctly different complexes with 1,3-propanediaminetetraacetate (1,3-pdta) ligand has been demonstrated by performing X-ray analyses of their crystalline Mg(II) salts. The two types of Mn(II) complexes have been obtained by different synthetic routes and their crystals constitute, respectively, the solid solution of the composition [Mg(H2O)6][Mg0.5Mn0.5(1,3-pd ta)] • 2H2O (1) and the ordered crystals of the composition [Mg(H2O)6][Mn(1,3-pdta)(H2O)] • 2H2O (2). In both, six- 1 and seven-coordinated 2 Mn(II) complexes the 1,3-pdta ligand acts as a hexadentate. As 2 makes the second example of the seven-coordinated 1,3-pdta complex with divalent transition metal ion, the other being the [Mg(H2O)6][Cd(1,3-pdta)(H2O)] • 2H2O (3) complex, the paper reports the results of X-ray investigations of both of these complexes at 130 K.
PB  - Elsevier
T2  - Polyhedron
T1  - Two distinct manganese(II) complexes with hexadentate 1,3-propanediaminetetraacetate ligand: The ability of metal(II) complexes with 1,3-pdta ligand to form solid solutions
VL  - 26
IS  - 8
SP  - 1717
EP  - 1724
DO  - 10.1016/j.poly.2006.12.011
ER  - 

@article{
author = "Rychlewska, Urszula and Warzajtis, Beata and Cvetić, Danica and Radanović, Dušanka and Gurešić, Dejan and Đuran, Miloš",
year = "2007",
abstract = "The ability of Mn(II) ion to form two distinctly different complexes with 1,3-propanediaminetetraacetate (1,3-pdta) ligand has been demonstrated by performing X-ray analyses of their crystalline Mg(II) salts. The two types of Mn(II) complexes have been obtained by different synthetic routes and their crystals constitute, respectively, the solid solution of the composition [Mg(H2O)6][Mg0.5Mn0.5(1,3-pd ta)] • 2H2O (1) and the ordered crystals of the composition [Mg(H2O)6][Mn(1,3-pdta)(H2O)] • 2H2O (2). In both, six- 1 and seven-coordinated 2 Mn(II) complexes the 1,3-pdta ligand acts as a hexadentate. As 2 makes the second example of the seven-coordinated 1,3-pdta complex with divalent transition metal ion, the other being the [Mg(H2O)6][Cd(1,3-pdta)(H2O)] • 2H2O (3) complex, the paper reports the results of X-ray investigations of both of these complexes at 130 K.",
publisher = "Elsevier",
journal = "Polyhedron",
title = "Two distinct manganese(II) complexes with hexadentate 1,3-propanediaminetetraacetate ligand: The ability of metal(II) complexes with 1,3-pdta ligand to form solid solutions",
volume = "26",
number = "8",
pages = "1717-1724",
doi = "10.1016/j.poly.2006.12.011"
}

Rychlewska, U., Warzajtis, B., Cvetić, D., Radanović, D., Gurešić, D.,& Đuran, M.. (2007). Two distinct manganese(II) complexes with hexadentate 1,3-propanediaminetetraacetate ligand: The ability of metal(II) complexes with 1,3-pdta ligand to form solid solutions. in Polyhedron
Elsevier., 26(8), 1717-1724.
https://doi.org/10.1016/j.poly.2006.12.011

Rychlewska U, Warzajtis B, Cvetić D, Radanović D, Gurešić D, Đuran M. Two distinct manganese(II) complexes with hexadentate 1,3-propanediaminetetraacetate ligand: The ability of metal(II) complexes with 1,3-pdta ligand to form solid solutions. in Polyhedron. 2007;26(8):1717-1724.
doi:10.1016/j.poly.2006.12.011 .

Rychlewska, Urszula, Warzajtis, Beata, Cvetić, Danica, Radanović, Dušanka, Gurešić, Dejan, Đuran, Miloš, "Two distinct manganese(II) complexes with hexadentate 1,3-propanediaminetetraacetate ligand: The ability of metal(II) complexes with 1,3-pdta ligand to form solid solutions" in Polyhedron, 26, no. 8 (2007):1717-1724,
https://doi.org/10.1016/j.poly.2006.12.011 . .

TY  - JOUR
AU  - Grubišić, Sonja
AU  - Radanović, Dušanka
AU  - Rychlewska, Urszula
AU  - Warzajtis, Beata
AU  - Drašković, Nenad S.
AU  - Đuran, Miloš
AU  - Niketić, Svetozar R.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4257
AB  - The trans(O6) isomer of the Ba[Co(1,3-pddadp)] • 8H2O complex (where 1,3-pddadp represents hexadentate 1,3-propanediamine-N,N′-diacetate-N,N′-di-3-propionate ion) has been prepared and characterized by X-ray crystallography. In the crystal structure the complex cations and anions are bridged by carboxylate oxygen atoms from the in-plane coordinated glycinate rings (G-rings) of [Co(1,3-pddadp)]2- and by the barium-coordinated water molecules, thus forming 1D polymeric chains, separated by infinite water tapes hydrogen bonded to the [Co(1,3-pddadp)]2- carboxylate oxygens from the out-of-plane β-alaninate rings (R-rings). Conformational analysis of the three possible geometrical isomers: trans(O5), trans(O5O6), and trans(O6) of the [Co(1,3-pddadp)]2- complex, with ligand acting as hexadentate, as well as of the corresponding complexes of Ni(II) and Cr(III) has been performed using the consistent force field (CFF) method, with the parameters developed previously for edta-type complexes of chromium(III) and supplemented with new parameters for cobalt(II) and nickel(II). The energy-minimized structure of the trans(O5O6) isomer represents the global minimum for the [M(1,3-pddadp)]n- (M = Co(II), Ni(II), and Cr(III)) species. The occurrence of the least energetically favored trans(O6) isomer in a crystal and the exceptional conformation of the axially oriented β-alaninate rings can be accounted for by the stabilizing role of the infinite tapes of planar cyclic water pentamers and hexamers which act as a "glue" to reinforce the coordination polymeric chains.
PB  - Elsevier
T2  - Polyhedron
T1  - Conformational study of Co(II), Ni(II), and Cr(III) complexes of the edta-type: Crystal structure of 1D polymeric trans(O6)-Ba[Co(1,3-pddadp)] · 8H2O complex stabilized by infinite water tapes
VL  - 26
IS  - 13
SP  - 3437
EP  - 3447
DO  - 10.1016/j.poly.2007.03.029
ER  - 

@article{
author = "Grubišić, Sonja and Radanović, Dušanka and Rychlewska, Urszula and Warzajtis, Beata and Drašković, Nenad S. and Đuran, Miloš and Niketić, Svetozar R.",
year = "2007",
abstract = "The trans(O6) isomer of the Ba[Co(1,3-pddadp)] • 8H2O complex (where 1,3-pddadp represents hexadentate 1,3-propanediamine-N,N′-diacetate-N,N′-di-3-propionate ion) has been prepared and characterized by X-ray crystallography. In the crystal structure the complex cations and anions are bridged by carboxylate oxygen atoms from the in-plane coordinated glycinate rings (G-rings) of [Co(1,3-pddadp)]2- and by the barium-coordinated water molecules, thus forming 1D polymeric chains, separated by infinite water tapes hydrogen bonded to the [Co(1,3-pddadp)]2- carboxylate oxygens from the out-of-plane β-alaninate rings (R-rings). Conformational analysis of the three possible geometrical isomers: trans(O5), trans(O5O6), and trans(O6) of the [Co(1,3-pddadp)]2- complex, with ligand acting as hexadentate, as well as of the corresponding complexes of Ni(II) and Cr(III) has been performed using the consistent force field (CFF) method, with the parameters developed previously for edta-type complexes of chromium(III) and supplemented with new parameters for cobalt(II) and nickel(II). The energy-minimized structure of the trans(O5O6) isomer represents the global minimum for the [M(1,3-pddadp)]n- (M = Co(II), Ni(II), and Cr(III)) species. The occurrence of the least energetically favored trans(O6) isomer in a crystal and the exceptional conformation of the axially oriented β-alaninate rings can be accounted for by the stabilizing role of the infinite tapes of planar cyclic water pentamers and hexamers which act as a "glue" to reinforce the coordination polymeric chains.",
publisher = "Elsevier",
journal = "Polyhedron",
title = "Conformational study of Co(II), Ni(II), and Cr(III) complexes of the edta-type: Crystal structure of 1D polymeric trans(O6)-Ba[Co(1,3-pddadp)] · 8H2O complex stabilized by infinite water tapes",
volume = "26",
number = "13",
pages = "3437-3447",
doi = "10.1016/j.poly.2007.03.029"
}

Grubišić, S., Radanović, D., Rychlewska, U., Warzajtis, B., Drašković, N. S., Đuran, M.,& Niketić, S. R.. (2007). Conformational study of Co(II), Ni(II), and Cr(III) complexes of the edta-type: Crystal structure of 1D polymeric trans(O6)-Ba[Co(1,3-pddadp)] · 8H2O complex stabilized by infinite water tapes. in Polyhedron
Elsevier., 26(13), 3437-3447.
https://doi.org/10.1016/j.poly.2007.03.029

Grubišić S, Radanović D, Rychlewska U, Warzajtis B, Drašković NS, Đuran M, Niketić SR. Conformational study of Co(II), Ni(II), and Cr(III) complexes of the edta-type: Crystal structure of 1D polymeric trans(O6)-Ba[Co(1,3-pddadp)] · 8H2O complex stabilized by infinite water tapes. in Polyhedron. 2007;26(13):3437-3447.
doi:10.1016/j.poly.2007.03.029 .

Grubišić, Sonja, Radanović, Dušanka, Rychlewska, Urszula, Warzajtis, Beata, Drašković, Nenad S., Đuran, Miloš, Niketić, Svetozar R., "Conformational study of Co(II), Ni(II), and Cr(III) complexes of the edta-type: Crystal structure of 1D polymeric trans(O6)-Ba[Co(1,3-pddadp)] · 8H2O complex stabilized by infinite water tapes" in Polyhedron, 26, no. 13 (2007):3437-3447,
https://doi.org/10.1016/j.poly.2007.03.029 . .

TY  - JOUR
AU  - Radanović, Dušanka
AU  - Rychlewska, Urszula
AU  - Warzajtis, Beata
AU  - Cvijović, Milica S.
AU  - Dimitrijević, Mirjana Đ.
AU  - Đuran, Miloš
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4333
AB  - The hexadentate complexes [Mg(H2O)6][Co(1,4-bdta)] • 3H2O (a) and [Mg(H2O)6][Ni(1,4-bdta)] • 3H2O (b) (where 1,4-bdta represents the 1,4-butanediaminetetraacetate ion) have been synthesized and characterized by electronic absorption spectroscopy and X-ray crystallography. The complexes (a) and (b) form isomorphic crystals that undergo a spontaneous resolution during the crystallization process yielding either enantiopure Λ (space group P61) or Δ (space group P65) isomers. The [M(1,4-bdta)]2- (M = Co(II) (a) and Ni(II) (b)) and [Mg(H2O)6]2+ octahedra are arranged in hydrogen bonded 2D-layers. Interception of these layers results in chiral channels filled with water molecules, which together with uncoordinated carboxylate oxygens of the complex anion, form mono-spiro chain that propagates in a helical manner along the c-direction. To the best of our knowledge, this is the first report on spontaneous resolution involving 1,4-bdta ligand and one of a few reports that concern conglomerate crystallization of M(II)(N2O4) complexes. The electronic absorption spectra of [Co(1,4-bdta)]2- and [Ni(1,4-bdta)]2- are presented and discussed in comparison with those of similar complexes and with reference to the varying topologies of these complexes.
PB  - Elsevier
T2  - Polyhedron
T1  - Tuning the topologies of Co(II) and Ni(II) complexes with EDTA, 1,3-PDTA and 1,4-BDTA ligands: Synthesis and spectroscopic data of [Mg(H2O)6][Co(1,4-bdta)] · 3H2O and [Mg(H2O)6][Ni(1,4-bdta)] · 3H2O complexes, and the X-ray structure of their chiral crystals
VL  - 26
IS  - 17
SP  - 4799
EP  - 4808
DO  - 10.1016/j.poly.2007.06.039
ER  - 

@article{
author = "Radanović, Dušanka and Rychlewska, Urszula and Warzajtis, Beata and Cvijović, Milica S. and Dimitrijević, Mirjana Đ. and Đuran, Miloš",
year = "2007",
abstract = "The hexadentate complexes [Mg(H2O)6][Co(1,4-bdta)] • 3H2O (a) and [Mg(H2O)6][Ni(1,4-bdta)] • 3H2O (b) (where 1,4-bdta represents the 1,4-butanediaminetetraacetate ion) have been synthesized and characterized by electronic absorption spectroscopy and X-ray crystallography. The complexes (a) and (b) form isomorphic crystals that undergo a spontaneous resolution during the crystallization process yielding either enantiopure Λ (space group P61) or Δ (space group P65) isomers. The [M(1,4-bdta)]2- (M = Co(II) (a) and Ni(II) (b)) and [Mg(H2O)6]2+ octahedra are arranged in hydrogen bonded 2D-layers. Interception of these layers results in chiral channels filled with water molecules, which together with uncoordinated carboxylate oxygens of the complex anion, form mono-spiro chain that propagates in a helical manner along the c-direction. To the best of our knowledge, this is the first report on spontaneous resolution involving 1,4-bdta ligand and one of a few reports that concern conglomerate crystallization of M(II)(N2O4) complexes. The electronic absorption spectra of [Co(1,4-bdta)]2- and [Ni(1,4-bdta)]2- are presented and discussed in comparison with those of similar complexes and with reference to the varying topologies of these complexes.",
publisher = "Elsevier",
journal = "Polyhedron",
title = "Tuning the topologies of Co(II) and Ni(II) complexes with EDTA, 1,3-PDTA and 1,4-BDTA ligands: Synthesis and spectroscopic data of [Mg(H2O)6][Co(1,4-bdta)] · 3H2O and [Mg(H2O)6][Ni(1,4-bdta)] · 3H2O complexes, and the X-ray structure of their chiral crystals",
volume = "26",
number = "17",
pages = "4799-4808",
doi = "10.1016/j.poly.2007.06.039"
}

Radanović, D., Rychlewska, U., Warzajtis, B., Cvijović, M. S., Dimitrijević, M. Đ.,& Đuran, M.. (2007). Tuning the topologies of Co(II) and Ni(II) complexes with EDTA, 1,3-PDTA and 1,4-BDTA ligands: Synthesis and spectroscopic data of [Mg(H2O)6][Co(1,4-bdta)] · 3H2O and [Mg(H2O)6][Ni(1,4-bdta)] · 3H2O complexes, and the X-ray structure of their chiral crystals. in Polyhedron
Elsevier., 26(17), 4799-4808.
https://doi.org/10.1016/j.poly.2007.06.039

Radanović D, Rychlewska U, Warzajtis B, Cvijović MS, Dimitrijević MĐ, Đuran M. Tuning the topologies of Co(II) and Ni(II) complexes with EDTA, 1,3-PDTA and 1,4-BDTA ligands: Synthesis and spectroscopic data of [Mg(H2O)6][Co(1,4-bdta)] · 3H2O and [Mg(H2O)6][Ni(1,4-bdta)] · 3H2O complexes, and the X-ray structure of their chiral crystals. in Polyhedron. 2007;26(17):4799-4808.
doi:10.1016/j.poly.2007.06.039 .

Radanović, Dušanka, Rychlewska, Urszula, Warzajtis, Beata, Cvijović, Milica S., Dimitrijević, Mirjana Đ., Đuran, Miloš, "Tuning the topologies of Co(II) and Ni(II) complexes with EDTA, 1,3-PDTA and 1,4-BDTA ligands: Synthesis and spectroscopic data of [Mg(H2O)6][Co(1,4-bdta)] · 3H2O and [Mg(H2O)6][Ni(1,4-bdta)] · 3H2O complexes, and the X-ray structure of their chiral crystals" in Polyhedron, 26, no. 17 (2007):4799-4808,
https://doi.org/10.1016/j.poly.2007.06.039 . .

TY  - JOUR
AU  - Grubišić, Sonja
AU  - Niketić, Svetozar R.
AU  - Radanović, Dušanka
AU  - Rychlewska, Urszula
AU  - Warzajtis, B.
PY  - 2005
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/187
AB  - The hexadentate trans(O5O6)-K[Co(1,3-pddadp)] (.) 3H(2)O complex (where 1,3-pddadp represents the 1,3-propanediamine-N,N'-diacetate-N,N'-di-3-propionate ion) has been characterized by single-crystal X-ray crystallography. The complex crystallizes in the P2/c space group of the monoclinic crystal system. In the crystal structure of trans(O5O6)-K[Co(1,3-pddadp)] (.) 3H(2)O the potassium ions and two solvent water molecules (O1W and O3W) are settled on a twofold axis of symmetry. The octahedral complex units trans(O5O6)-[Co(1,3-pddadp)](-) are bridged by carboxylate oxygen atoms with the potassium ions to build a two-dimensional polymer structure, separated by layers formed by hydrogen bonded water molecules and carboxylate oxygens. The coordination polyhedra around K1 and K2 are found to be distorted square antiprism and twisted bi-capped trigonal prism, respectively. Conformational analysis of the three possible geometrical isomers (trans(O-5), trans(O5O6) and trans(O-6)) of the [Co(1,3-pddadp)]- complex, was performed using the Consistent Force Field (CFF) program, with the parameters developed previously for edta-type complexes and new parameters for Co(III). Molecular mechanics (MM) calculations reproduced very well the crystallographically characterized structures (trans(O5O6)-[Co(1,3-pddadp)](-) and trans(O-6)-[Co(1,3-pddadp)](-)).
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Polyhedron
T1  - Layered crystal structure of the trans(O5O6) isomer of potassium (1,3-propanediamine-N,N '-diacetato-N,N '-di-3-propionato) cobaltate(III) trihydrate, trans(O5O6)-K[Co(1,3-pddadp)] center dot 3H(2)O, stabilized by ionic, hydrogen bond and C=O dipolar inte
VL  - 24
IS  - 13
SP  - 1701
EP  - 1709
DO  - 10.1016/j.poly.2005.04.035
ER  - 

@article{
author = "Grubišić, Sonja and Niketić, Svetozar R. and Radanović, Dušanka and Rychlewska, Urszula and Warzajtis, B.",
year = "2005",
abstract = "The hexadentate trans(O5O6)-K[Co(1,3-pddadp)] (.) 3H(2)O complex (where 1,3-pddadp represents the 1,3-propanediamine-N,N'-diacetate-N,N'-di-3-propionate ion) has been characterized by single-crystal X-ray crystallography. The complex crystallizes in the P2/c space group of the monoclinic crystal system. In the crystal structure of trans(O5O6)-K[Co(1,3-pddadp)] (.) 3H(2)O the potassium ions and two solvent water molecules (O1W and O3W) are settled on a twofold axis of symmetry. The octahedral complex units trans(O5O6)-[Co(1,3-pddadp)](-) are bridged by carboxylate oxygen atoms with the potassium ions to build a two-dimensional polymer structure, separated by layers formed by hydrogen bonded water molecules and carboxylate oxygens. The coordination polyhedra around K1 and K2 are found to be distorted square antiprism and twisted bi-capped trigonal prism, respectively. Conformational analysis of the three possible geometrical isomers (trans(O-5), trans(O5O6) and trans(O-6)) of the [Co(1,3-pddadp)]- complex, was performed using the Consistent Force Field (CFF) program, with the parameters developed previously for edta-type complexes and new parameters for Co(III). Molecular mechanics (MM) calculations reproduced very well the crystallographically characterized structures (trans(O5O6)-[Co(1,3-pddadp)](-) and trans(O-6)-[Co(1,3-pddadp)](-)).",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Polyhedron",
title = "Layered crystal structure of the trans(O5O6) isomer of potassium (1,3-propanediamine-N,N '-diacetato-N,N '-di-3-propionato) cobaltate(III) trihydrate, trans(O5O6)-K[Co(1,3-pddadp)] center dot 3H(2)O, stabilized by ionic, hydrogen bond and C=O dipolar inte",
volume = "24",
number = "13",
pages = "1701-1709",
doi = "10.1016/j.poly.2005.04.035"
}

Grubišić, S., Niketić, S. R., Radanović, D., Rychlewska, U.,& Warzajtis, B.. (2005). Layered crystal structure of the trans(O5O6) isomer of potassium (1,3-propanediamine-N,N '-diacetato-N,N '-di-3-propionato) cobaltate(III) trihydrate, trans(O5O6)-K[Co(1,3-pddadp)] center dot 3H(2)O, stabilized by ionic, hydrogen bond and C=O dipolar inte. in Polyhedron
Oxford : Pergamon-Elsevier Science Ltd., 24(13), 1701-1709.
https://doi.org/10.1016/j.poly.2005.04.035

Grubišić S, Niketić SR, Radanović D, Rychlewska U, Warzajtis B. Layered crystal structure of the trans(O5O6) isomer of potassium (1,3-propanediamine-N,N '-diacetato-N,N '-di-3-propionato) cobaltate(III) trihydrate, trans(O5O6)-K[Co(1,3-pddadp)] center dot 3H(2)O, stabilized by ionic, hydrogen bond and C=O dipolar inte. in Polyhedron. 2005;24(13):1701-1709.
doi:10.1016/j.poly.2005.04.035 .

Grubišić, Sonja, Niketić, Svetozar R., Radanović, Dušanka, Rychlewska, Urszula, Warzajtis, B., "Layered crystal structure of the trans(O5O6) isomer of potassium (1,3-propanediamine-N,N '-diacetato-N,N '-di-3-propionato) cobaltate(III) trihydrate, trans(O5O6)-K[Co(1,3-pddadp)] center dot 3H(2)O, stabilized by ionic, hydrogen bond and C=O dipolar inte" in Polyhedron, 24, no. 13 (2005):1701-1709,
https://doi.org/10.1016/j.poly.2005.04.035 . .